यदि \(^{16}C_{r}=^{16}C_{2r+4}\) है, तो (r) का मान क्या है?
If \(^{16}C_{r}=^{16}C_{2r+4}\), what is the value of (r)?
Explanation opens after your attempt
A. (4)
Concept
The complementary indices must add to (16). Thus (r+2r+4=16) gives (r=4).
Why this answer is correct
The correct answer is A. (4). The complementary indices must add to (16). Thus (r+2r+4=16) gives (r=4).
Exam Tip
पूरक सूचकांकों का योग (16) होगा। इसलिए (r+2r+4=16) से (r=4)।
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